939489 has 4 divisors (see below), whose sum is σ = 1252656. Its totient is φ = 626324.

The previous prime is 939487. The next prime is 939511. The reversal of 939489 is 984939.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 939489 - 2¹ = 939487 is a prime.

It is a super-2 number, since 2×939489² = 1765279162242, which contains 22 as substring.

It is a D-number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 939489.

It is not an unprimeable number, because it can be changed into a prime (939487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 156579 + ... + 156584.

It is an arithmetic number, because the mean of its divisors is an integer number (313164).

2⁹³⁹⁴⁸⁹ is an apocalyptic number.

It is an amenable number.

939489 is a deficient number, since it is larger than the sum of its proper divisors (313167).

939489 is a wasteful number, since it uses less digits than its factorization.

939489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313166.

The product of its digits is 69984, while the sum is 42.

The square root of 939489 is about 969.2724075305. The cubic root of 939489 is about 97.9408569980.

The spelling of 939489 in words is "nine hundred thirty-nine thousand, four hundred eighty-nine".